Edging attachment for lumber-joining machines.



B. A; LINDEEMAN.

BDGING ATTACHMENT FOR LUMBER JOINING MACHINES APPLIOATION FILED JUNE 1, 1909.

944,49, Batented Dec. 28, 1909.

4 SHEETS-SHEET 1.

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B. A. LINDERMAN.

EDGINGATTAGHMENT FOR LUMBER JOINING MACHINES.

APPLICATION FILED JUNE 1, 1909.

Patented Dec. 28, 190 9.

4 SHEETS-SHEET 2.

APPLICATION FILED JUNE 1 Patented Deal 28, 1909.

'4 SHEETS-SHEET 3.

, B. A. LINDERMAN.

EDGING ATTACHMENT FOR LUMBER JOINING MACHINES.

APPLIOATIOH FILED JUNE 1, 1909.

Patentad -Dec. 28 1909.

' SHEETS-SHEET 4.

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a Jae/6272??? PATENT Ul l lCE.

BERT Animus. a mzosamaa, or massacres, mzcnman. EDGING ATTACHMENT newnesserome MACHINES.

To all whom it may concern:

Be it knownthat I, Bnnr A. LINDERMAN, a citizen of the United States. residing in M'uskegon, in the county of Muskegon and State of Michigan, have invented a newand I useful Improvement in Edging Attachstock before it reaches the dovetailing ole-- ments for Lumber-Joining Machines, of which the following is a specification.

This invention relates to the class of lumber joining machines of which the machine shown in the Patent No. 827,738, granted to Albert T. Linderman on August 7th, 1906,

is a type, My endeavor in the invention has f.

. been to provide such machines with means now be the pressure rollers for holdin whereby greater economy in the lumber used may be gained.

The nature of my imprOVenmnt is fully disclosed in the description given below, and is illustrated in the accompanying drawing in which latter- Figure 1 a side elevation partly in section of my improvement. 1 Figs. 2 and 3 illustrate the work accomplished by the machine. Fig. is a front elevation of a portion of thclumber joining machine having my n'nprovements attached. Fig. 5 is a side.

clcvation of the motor devices for operating the improvement. Fig. (3 is a section on the line (?-5 of Fig. 7. Fig. 7 is a rear elevation of the motor devices and Fig. 8 is a detail section of the motor supporting and edging devices. i

' It has been customary heretofore" to edge the stock joined in these machines by cutting the edges at right angles to the flat sides. It frequently happens, however, that in c utting out the stock, especially in the pieces which come from the outsideof the log, that by edging them at other angles than the right angle, a. saving'of the stock can be effected, the inclining of the edging out leaving a portion of the good stock adhering t0 the main body. Forthis purpose. I add In present improvements which will escribed In the drawing, 9 re resents the frame of a lumber joining mac ine, preferably that shown in the said Linderman patent. 1010 are the cutters for forming the doye-tails on'the edge of the stock and 11-11 is one of. the carriers for conveying" the stock to the dovetailers and'12--1 2 are the stock down upon thecarrier-while-it'is eing dovetailed and fed through the machine.

In order to enable the complete prepara;

Specification of Letters Patent.

Application filed June 1,

Patented Dec. 28, 1909. 1909. Serial No. 499,2es.

is performed 1n the machine,- l now provide the machine with an edging saw 13 mounted upon an arbor l4 and supported by a bracket and located where the sawmill act upon the vices, but while it. is being carried by the edger may be used to give the edge ofthe stock a right angle: cut, but it is also capai ble of use to give theedge any desired bevel ior incline. As will be noticed from the t specimens at Figs. '2 and 3 of the drawing, l the angles ofthe cuts may vary quite widely, I and hence the bracket 15 is provided with l are slots 17 through which the bearings of l the saw arbor may be secured and adjusted. i 'lhey permit the inclining of the saw, as l shown in broken lines in Fig. 1, thus enabling the cutting of the edge at such an angle as will save all the good stock embodied in the lumber. Inasmuch as the saw is cal pable of being tipped from the vertical in I this manner, it is necessary that. the motor i be correspondingly tipped or inclined, and hence I mount the motor on the curved side of a standard 18, the standard being provided with racks 19 and the base 20 of. the motor having a cross shaft illupon which are mounted pinions 22 adapted, to engage i said racks. By moving the base 20 up or from the position given in Fig. 5 to the one to any intermediate osition, sothat there will be no difficulty in keeping the belt by which the saw is operated, in action; After the stuff has been edged, it proceeds on its way, and the dovetails are cut in it so that they can be'joined with other pieces edged and dovetailed at the other side of the machine.

When the machine is working bark edge taper stock to be made into flat composite boards, such as are. shown in Fig. 3, the ved e r saw and the dovetail cutters atone .en of the machine are inclined in one direction from thepeipendicular and the edger rection, the dovetail cutters being adjustable as to inclination in the customary way to the extent necessary for this purpose. l/Vhen same means which carry it to the latter. The saw 18 driven by a belt from the pulley 16 actuated by an electric motor 17. This saw and dovetail cutters at the other end of the machine are inclined in the opposite d1- til I 15- projecting from the side ofifthe machine 'given in broken lines in the same figure or making school seats and backs and similar work in which the stuff is usually edged vertically, I tilt the endless beds transversely v ing devices 24 extending under the track and projecting outward at one side thereof and in such side projection I place vertical screws 25 bearing upon the frame of the machine. These devices, which 1 term the lifters,

' should be employed in such number as may be needed to keep the track inclined until the stock has been joined together, and in' order that all the lifters may be operated simultaneously and to the same extent, I provide each of the screws with worm gears 26 and operate them in unison by a worm 27 extending along the series. This operation will be understood from the broken linesfin-Fig. 1. v

I claim:

1. The lumber joining machine embodying an edging saw mounted so as to be adjustable either to a vertical position or to a position inclined to the vertical, means for Witnesses:

cutting dovetails in the longitudinal edges of the stock which are adapted to hemclined correspondingly With the inclination given the edging saw, and means for feeding the stockto the edging saw and the dovetail cutters. .v

2. The combination in a lumber oining machine of a lumber carrier, an edger mounted so as to be adjustable to an inclined position, and dovetail cutters, the carrier being also adjustable to an incline corresponding inclined from the vertical and a motor belted to the edger and adjustable correspondingly with the edger; I g

t. The combination in an, automatic lumber joining machine, of an endless carrier,

and dovetail cutters acting on the edge of. the stock and adjustable as to inclination,

the carrierbeing also adapted to be inclined while presenting the stock to the cutters.

- BERT ARTHUR LINDERMAN.

J osnrn C. Go'rm, .OHAs. F. GLEW. 

